The consumption of tungsten (in metric tons) in a country is given approximately by p(t) = 136t² + + 1,07 1t+14,910, where t is time in years and t = 0 corresponds to 2010. (A) Use the four-step process to find p'(t). (B) Find the annual consumption in 2021 and the instantaneous rate of change of consumption in 2021, and write a brief verbal interpretation of these results. (A) p'(t) = C

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